CN1141999A - Flat handle device for lock - Google Patents

Abstract

The object of the present invention is to provide a flat handle device for a lock that can reliably realize the protruding action of the handle when the button is pushed in. The linear part 13 of the spring mechanism 11 is blocked on the spring seat surface 14 of the handle 4, and the other linear part 15 is blocked on the spring seat surface 16 of the lock housing 2, and the front end of the obliquely extending linear part 18 is provided to be blocked. The bent portion 20 of the spring seat surface 19 of the hook arm 7 of the button 8 is set as a bent portion 20 for the intersection 22 of the reference plane 21 through the center of the pivot shaft 5 and the spring seat surface 19 in the state where the button 8 is inserted. The contact point 23 with the spring seat surface 19 is located on the opposite side to the handle pivot 3 .

Description

Flat handle device for lock

The invention relates to a planar handle device for opening, closing and locking a lock used for a door pivotally supported on a fixed frame body.

The flat handle device of the lock is preferably when opening and closing the door, and the handle of the lock is relatively simple to operate.

As everyone knows, there is a locking flat handle device in the prior art that snaps the hook arm on the back side of the button to the hook recess on the bottom wall of the lock housing to keep the handle in the retracted position in the lock housing. When the handle is protruding and the button is pressed, due to the timing relationship between the protruding action of the handle and the reset action of the button, if the button is released, the hook arm is often buckled in the hook recess again and the handle cannot be protruded. , so the operability is not good. Also, since a spring for rotating and pressing the handle in the protruding direction and a spring for rotating and pressing the button in the return direction are required, it is not economical.

Therefore, it is an object of the present invention to provide a lock flat handle device that can reliably realize the protruding action of the handle when the button is pushed in, has excellent operability, and is economical due to the reduction in the number of parts.

Hereinafter, the reference numerals of the attached drawings are used to illustrate that the flat handle device of the lock of the present invention includes: a lock case 2 fixed on the door 1; The first pivot 3 is pivotally mounted on the handle 4 of the lock case 2; The hook arm 7 for fastening and separation protrudes from the button 8 on the back side; and the locking arm 10 that is connected to the first pivot 3 and is fastened and separated from the latch seat on the side of the fixed frame body 9; and the handle 4. A spring mechanism 11 etc. that rotates and pushes the push button 8 in the direction of return by rotating and pressing it in the direction of protrusion.

The spring mechanism 11 is formed by a single torsion spring whose front side straight portion 13 is in contact with the first spring seat 14 on the back side of the handle 4, and the bottom side straight portion 15 is in contact with the second spring seat 16 of the bottom wall of the lock case 2. constitute. The front end of the straight line portion 15 on the bottom surface is provided with an extended straight line portion 18 protruding obliquely from the contact point 17 with the second spring seat surface 16 to the oblique direction of the front side. The curved portion 20 of the third spring seat surface 19 of the hook arm 7 base of the button 8 is blocked.

Forming a right angle with respect to the front of the handle 4 and passing through the intersection 22 of the reference plane 21 of the center of the second pivot 5 and the 3rd spring seat surface 19, it is set that under the reset state of the button 8, the bending portion 20 and the 3rd spring seat The contact point of the surface 19 is on the side of the first pivot 3 , and on the one hand, when the button 8 is pushed in, the contact point of the curved portion 20 and the third spring seat surface 19 is on the opposite side to the first pivot 3 .

When the door 1 is locked and the fixed frame body 9 is in a locked state, as shown in Fig. 5 and Fig. 8, the reference plane 21 and the reference plane 21 passing through the center of the second pivot 5 and forming a right angle with respect to the front of the lock case 2 are The intersection point 22 of the third spring seat surface 19, the contact point between the curved portion 20 and the third spring seat surface 19 is located on the side of the first pivot 3, so the button 8 is rotated and pressed in the reset direction, and the upper end 34 of the button 8 is fastened to the handle. The stop wall portion 33 of the front edge portion of 4 can thus be kept in this position.

Overcoming the above-mentioned elastic force of the extended linear portion 18 of the spring mechanism 11 and pressing the rotary button 8 with the second pivot 5 as the center, the extended linear portion 18 extends to the back side, and the hook arm 7 of the button 8 is released from the lock housing. 2. The hook recess 6 of the bottom wall part is disengaged, and the front side linear part 13 of the spring mechanism 11 is pushed, and the handle 4 protrudes and rotates to the front side around the first pivot 3.

As shown in Figures 6 and 9, in the push-in state of the button 8, the extended linear portion 18 of the spring mechanism 11 extends to the back side, and the contact point between the curved portion 20 and the third spring seat surface 19 is relative to the above-mentioned plane 2 and Since the intersection point 22 of the third spring seat surface 19 is located on the opposite side to the first pivot 3, the biasing direction of the extended linear portion 18 is reversed, and the push button 8 remains in the pushed state.

Fig. 1 shows a front view of a door equipped with a flat handle device of a lock according to an embodiment of the present invention.

Fig. 2 shows the front view of the locked state of the flat handle device of the lock.

Fig. 3 shows the rear view of the locked state of the flat handle device of the lock.

Fig. 4 shows the right side view of the locked state of the flat handle device of the lock.

Fig. 5 shows a sectional view of line A-A' in Fig. 2, and the button is in a reset state.

Fig. 6 shows a sectional view of line A-A' in Fig. 2, and the pushed state of the button.

Fig. 7 shows a sectional view taken along line B-B' of Fig. 2 .

Fig. 8 is a detailed view showing the positional relationship between the third spring seat surface and the contact point of the bending part in the reset state of the button of Fig. 5 .

Fig. 9 is a detailed view showing the positional relationship between the third spring seat surface and the contact point of the bending part in the pushed state of the button of Fig. 6 .

1: door, 2: shell, 3: first pivot, 4: handle, 5: second pivot, 6: hook recess, 7: hook arm, 8: button, 9: fixed frame, 10: Lock arm, 11: Spring mechanism, 12: Coil part, 13: Front straight part, 14: 1st spring seat surface, 15: Bottom side straight part, 16: 3rd spring seat surface, 17: Retaining contact point, 18 : Extended linear part, 19: 3rd spring seat surface, 20: curved part, 21: reference plane formed at right angles to the front of the handle and passing through the center of the 2nd pivot, 22: distance between the reference plane and the 3rd spring seat surface Intersection point, 23: Contact point between the third spring seat surface and the curved part, 24: O-ring, 25: Mounting plate, 26: Packing member, 27: Locking bolt, 28: Hexagon nut, 29: Small screw for installation, 30: Lock mounting part, 31: Interlocking shaft, 32: Shaft hole, 33: Button stop wall, 34: Upper end of button, 35: Shaft hole, 36: Small diameter shaft of interlocking shaft, 38: Link Intermediate shaft portion of the moving shaft, 39: a receiving hole.

In the illustrated embodiment, the housing 2 is formed from a single piece in the shape of a bowl. The first pivot 3 is integrally formed into a cylindrical shape with the lock case 2 and is inserted into the shaft hole 32 of the handle 4 . The interlocking shaft 31 protruding laterally from the base end of the locking arm 10 is rotatably inserted through the shaft hole 35 on the right side wall of the lock case 2, and inserted into the interlocking shaft 31 in the cylindrical portion of the first pivot 3. The small-diameter shaft portion 36 is riveted in the opening end portion 37 of the cylindrical portion to prevent falling off. The coil portion 12 of the spring mechanism 11 is fitted to the interlocking shaft 31 and the first pivot shaft 3 . The first spring seat surface 14 is formed on the back surface of the button stopper wall portion 33 .

The interlocking shaft 31 of the lock arm 10 is fitted with the hexagonal support hole 39 of the handle 4 in a non-rotatable state relative to the support hole 39, and the lock arm 10 and the handle 4 rotate integrally. And the locking bolt 28 at the front end is engaged with or separated from the fixture part 40 on the side of the fixed frame body 9 . The linkage mechanism between the lock wall 10 and the handle 4 is not limited thereto, and various known structures can be employed. An O-ring 24 is fitted to the interlocking shaft 31 for waterproofing between the lock case 2 and the handle 4 .

As mentioned above, in the flat handle device of the lock of the present invention, the spring mechanism 11 is in contact with the first spring seat surface 14 on the back side of the handle 4 by the front side straight part 13, and the bottom side straight part 15 is in contact with the bottom of the lock case 2. The second spring seat surface 16 of the wall portion rotates and springs the handle 4 toward the protruding direction, and on the other hand, the front end of the straight line portion 15 on the bottom surface side protrudes obliquely from the contact point 17 with the second spring seat surface 16 to the front side. The curved portion 20 at the front end of the extended linear portion 18 is in contact with the spring seat surface 19 at the root of the hook arm 7 of the button 8, so that the push button 8 is rotated in the reset direction; Two springs for spring pressing and push button return spring can reduce the number of parts and have excellent economy.

Again, with respect to the front of the handle 4 at right angles and passing through the intersection 22 of the reference plane 21 and the 3rd spring seat surface 19 of the center of the 2nd pivot 5, under the pushing state of the button 8, due to the curved portion 20 and the 3rd spring seat surface 19 3. The intersection point 23 of the spring seat surface 19 is set to be located on the opposite side to the first pivot 3. Therefore, the hook arm 7 of the button 8 is reliably held at a position where it is not engaged with the hook recess 6 again, and the protruding action of the handle 4 It can be performed smoothly without being hindered by the button 8, so it has excellent operability.

Claims (1)

1. the flat handle device of a lock comprises: the lock housing (2) that is installed in door (1); And be contained in lock housing (2) with telescopic state, and base end part is installed in the handle (4) of lock housing (2) by the 1st pivot (3); And be installed in handle (4) by the 2nd pivot (5) parallel with the 1st pivot (3), and will with lock housing (2) bottom wall portion hook recess (6) fasten or separate hook the button (8) that arm (7) is based in rear side; And be linked to handle (4) and the lock arm (1) 0 that fastens or separate with the lock bolt seat part of fixed frame (9) side; And the spring mechanism (11) that handle (4) is suppressed and button (8) is suppressed to the direction rotation that resets to projected direction rotation etc., wherein: spring mechanism (11) is connected to the 1st seat surface (14) of handle (4) rear side by face side line part (13) retaining, the single torsionspring that bottom surface side line part (15) retaining is connected to the 2nd seat surface (16) of lock housing (2) bottom wall portion constitutes, bottom surface side line part (15) front end setting from the retaining contact (17) of the 2nd seat surface (16) to the outstanding prolongation straight line portion (18) of face side tilted direction, again, being arranged at face side at prolongation straight line portion (18) front end forms convex and can keep off the bend (20) of the 3rd seat surface (19) of hooking arm (7) root that is connected to button (8), form the right angle and through the reference plane (21) at the center of the 2nd pivot (5) and the intersection point (22) of the 3rd seat surface (19) with respect to the front of handle (4), under the reset mode of button (8), the contact of bend (20) and the 3rd seat surface (19) is in the 1st pivot (3) side, on the other hand, under the state that pushes button (8), the contact of bend (20) and the 3rd seat surface (19) is in the 1st pivot (3) opposition side.

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